nostr:npub1hvdfn5ne7zvks3ztfewr00vdjv3kve4nddht43p8fjepc8rn6yasz69sq9 Others have done this for a while; my current employer links it with their EMNS and will have campus security alerted for those moving around a university campus. Off campus, you need to provide a mobile number.

Having it in the OS opens it up to everybody. Definitely worth encouraging those walking around alone to use it.